16 x 20 25 July 8, 2019 16 32 64 128 16 x 20 x 25 x solution Merv 16 20 x 25 x 5 16 x 20 x 25 x find x Model hcf20-16 20 x 25 x 5 20 x 16 x 20 20 x 16 x 12 16 / 20 x 100 20 x 16 x 5
